Free Hero Mesh

      if(v_bool(send_message(n,m,MSG_PLAYERMOVING,NVALUE(x),NVALUE(y),OVALUE(from)))) return 0;
      m=objects[m]->prev;
    }
  }
  if(!(o->oflags&OF_BIZARRO) && (i=classes[o->class]->collisionLayers) && (xx=collisions_at(x,y)&i)) {
    if((i=collide_with(xx,VOIDLINK,x,y,o->class))&0x01) return i&0x04?1:0;
  }

  if(!(o->oflags&((classes[o->class]->cflags&CF_COMPATIBLE?OF_VISUALONLY:0)|OF_STEALTHY))) {
    for(i=25;i>=0;i--) {
      xx=o->x+Xbit(i); yy=o->y+Ybit(i);
      if(xx<1 || xx>pfwidth || yy<1 || yy>pfheight) continue;
      m=playfield[xx+yy*64-65];
      while(m!=VOIDLINK) {
        p=objects[m];
        if(p->departures&(1<<i)) p->departed|=1<<i;
        m=p->up;
      }
    }
  }
  pfunlink(n);
  o->distance+=abs(x-o->x)+abs(y-o->y);
  o->x=x;
  o->y=y;
  pflink(n);
  if(!(o->oflags&((classes[o->class]->cflags&CF_COMPATIBLE?OF_VISUALONLY:0)|OF_STEALTHY))) {
    for(i=25;i>=0;i--) {
      xx=x+Xbit(i); yy=y+Ybit(i);
      if(xx<1 || xx>pfwidth || yy<1 || yy>pfheight) continue;
      m=playfield[xx+yy*64-65];
      while(m!=VOIDLINK) {
        p=objects[m];
        if(p->arrivals&(1<<i)) p->arrived|=1<<i;
        m=p->up;
      }
    }
  }

  if(!(o->oflags&OF_VISUALONLY)) {
    m=objects[n]->up;
    if(m!=VOIDLINK) {
      v=send_message(VOIDLINK,n,MSG_SUNK,NVALUE(0),NVALUE(0),NVALUE(0));
      while(m!=VOIDLINK) {
        send_message(n,m,MSG_FLOATED,NVALUE(0),NVALUE(0),v);
        m=objects[m]->up;